Biology Chapter 10
Terms
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- A trait is...
- A variation of a character.
- Genetics is the study of...
- Heredity.
- In cross-fertilization...
- Sperm from the pollen of one flower fertilizes the eggs in a flower of a different plant.
- The difference between the blending and particulate hypothesis...
- In the particulate hypothesis, the traits don't mix, one is just dominant.
- Mendel used both...
- Cross-fertilization and self-fertilization to compare his results.
- The offspring of two different true-breeding varieties are called.
- Hybrids.
- A monohybrid cross is when...
- the parents differ in only one character.
- Alternative forms of genes are called...
- Alleles
- If two alleles are the same it is called...
- Homozygous
- If two alleles are different it is called...
- Heterozygous
- When a heterozygous plant shows in its phenotype only one characteristic, that characteristic is considered to be...
- Dominant.
- Any allele that is in the genotype but not the phenotype is...
- Recessive.
- The law of segregation states that...
- During the production of gametes, there is only one allele per character from each parent.
- A diagram that shows all possible outcomes of a genetic cross is called a...
- Punnett Square
- Why is probability so important to genetics...
- Because of Mendel's law of segregation.
- The observable traits are called the...
- Phenotype
- The genetic make-up is called the...
- Genotype
- Testcross...
- Breeds an individual of unknown genotype with a homozygous recessive individual.
- A dihybrid cross results in...
- 16 punnet squares.
- The rule of independent assortment states that...
- The selection of certain genes does not influence the selection of other ones.
- When offspring demonstrate a mix of two characteristics, it is called...
- Intermediate inheritance.
- Codominance is when...
- Heterozygotes express both traits...
- In intermediate inheritance, neither gene is...
- Dominant.
- When two or more genes affect an individual character, it is called...
- Polygenic inheritance.
- Polygenic Inheritance increases the number of possible outcomes because of...
- Exponents.
- An example of the influence of environment is...
- North Koreans are about 3 inches shorter than South Koreans.
- The chromosome theory of inheritance states...
- Genes are located on chromosomes, and behavior of chromosomes affects inheritance patterns.
- The location of the genes on the chromosome is called...
- A gene locus.
- The tendency for alleles on one chromosome to be inherited together is called...
- Genetic linkage.
- Mendel's theory of independent assortment is correct except...
- When the genes are on the same chromosome.
- Any gene that is located on a sex chromosome is called a...
- Sex-linked gene.
- Sex-linked traits occur most commonly in...
- Men.